A WSJ analysis of 11,000 insider trades at 550 publicly traded companies has found that those...

A WSJ analysis of 11,000 insider trades at 550 publicly traded companies has found that those trades veer heavily towards the sale of stock in the year before a firm files for bankruptcy protection. At A123 Systems (AONEQ.PK), for example, six employees sold a combined 9.1M shares in the 12 months before the battery maker filed for Chapter 11. Other companies mentioned include Patriot Coal (PCXCQ.OB).